Vapor lamp



'2 SheetsSheet 1.

(No Model.)

G. WASHINGTON.

VAPOR LAMP.

No. 593,257. Patented Nov. 9,1897.

2 N 0 TR m mL Wm AM WV mm (No Model.)

Patented Now,w 9, 1897.

In: walls PETERS on. mow-sumo m nmcvon a c UNITE STATESv PATENT @rEicE.

GEORGE WASHINGTON, OF BRUSSELS, BELGIUM, AssiGNOR TO THE GEORGEWASHINGTON LIGHTING COMPANY, OF JERSEY CITY, NEW JERSEY.

VAPOR-LAM P.

SPECIFICATION forming part of' Letters Patent No. 593,257, datedNovember 9, 1897.

Application filed July 7, 1897- Serial No. 643,698. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE WASHINGTON, of Brussels, Kingdom of Belgium,have invented certain new and useful Improvements in Vapor-Lamps and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art towhich it appertains to make and use the same.

My invention relates to an improvement in vapor-lamps, and moreparticularly to improvements in a combined oil and vapor valve designedfor use in such lamp.

The object of my invention is to provide a single mechanism foractuating both valves, so that when actuated both valves are operated toeither open or close their respective passage-ways, as the case may be.

With this end in view my invention consists in the parts andcombinations of parts, as will be more fully described, and pointed outin the claims.

In the accompanying drawings, Figure 1 is a view of a lamp embodying myinvention. Fig. 2 is a view in section through the coupling,vaporizing-tube, and valve-actuating mechanism; and Fig. 3is aview inhorizontal section through the coupling, showing the needle-valve holderand the valve-actuating shaft.

A represents a lamp which may be a handlamp having an oil-reservoirpermanently attached thereto or a bracket-lamp such as I haveillustrated in Fig. 1. In the latter construction the bracket is hollowfor the passage of oil or for the passage of a small tube a forconveying the oil to the lamp. The bracket or pipe therein is connectedto a supply-pipe 1), leading to a reservoir, from which oil is suppliedto the lamp either by gravity or air-pressure within the reservoir.

The bracket B carries and communicates with the oil cup (3, into whichthe oil is discharged from the tube a. Secured to this cup by anoil-tight joint is the coupling D, made of any suitable metal. /Vhenused on a hand lamp, this coupling would be secured directly to the neckof the reservoir of the lamp. This coupling is provided at its lower endwith a female-threaded cavity, into which is secured one end of thevalve-seat D. This valve-seat is provided with a bore of approximatelythe size of the bore of the coupling D, its lower end, however, beingrestricted in size and of somewhat conical form to form a seat for thevalve (Z. the stem 01, which latter passes upwardly through thevalve-seat intothe bore of the coupling and is yieldingly held againstthe under side of theneedle-valve holder E by the spring E, one end ofwhich rests on the contracted lower end of the valve-seat D, while theother or upper end bears against a tension'nut screwed onto thevalve-stem d".

From the foregoing it will be seen that when the needle-valve holder iselevated to close the needle-valve the spring elevates the valvestem andcloses valve d onto its seat and stops the flow of oil to thevaporizing-tube.

The needle-valve holder E is mounted in the bore of the coupling D, andis provided at its lower end with teeth d extending around the stem,which teeth are engaged by the pinion F, secured on the shaft F. Theshaft F is arranged tangentially to the bore of the coupling and passesthrough the stuffing-box F secured in the coupling. This box F isscrew-threaded externally and internally, and is made conical at itsinner end, as shown at g, to form an oil-tight joint with the angularshoulder g in the coupling D. The box F is threaded internally for theattachment of the screw-threaded gland F The shaft F passes through thegland and stuffing-box and is packed by the packing F located within thestuffing-box and compressed and held in place by the gland. From this itwill be seen that the shaft-opening is securely packed and all danger ofleakage of oil absolutely prevented.

The shaft F is provided with a finger-wheel F by which the shaft isturned, and when turned it moves the needle-holder longitudinally.

Secured on the upper screw-threaded end of the coupling D is thevaporizer H. This vaporizer consists simply of a tube provided at itsouter end with a plug 71-, having a conical vapor-escape orifice htherein.

Secured within the upper female-screwthreaded end of the needle-valveholder E is the needle-valve I. This valve extends throughout the lengthof the vaporizer, with Valve (2 is secured to its pointed or taperingend in line with the escape-orifice h of the plug h, and is adapted tobe moved longitudinally, so as to open or close said escape-orifice.

The incandescent lamp,which forms no part of my present invention, andwhich in the present instance is constructed as disclosed in my PatentNo. 576,524, granted February 2, 1897, consists of a mixing-chan1ber Jairsupply pipes J, the mixed air and vapor tubes or pipes J the burnersJ and a starting-cup J The vapor as it escapes from the vaporizing tubel-I enters the mixingchamber J. The blast of gas acts as an injector anddraws in through pipes J the outside air, which enters themixing-chamber and is thoroughly mixed with the hydrocarbon vapor. Themixed air and vapor then passes downwardly through the pipes J 2 to theburners J where it is burned under or within the incandescent mantles JThe burner or burners are located adjacent to the vaporizing-tube andcombined air and vapor pipe or pipes J and under the mixingchamber, andhence these parts of the lamp are, when the lamp is burning, heatedsulficiently high to keep the vapor and air at a proper temperature forrapid and complete combustion.

The manner of operating the lamp is eX- ceedingly simple. Alcohol ispoured into the starting-cup and lighted, after which the shaft F isturned to lower the needle and oil valves. The oil then rises, bypressure thereon, up through valve-seat into coupling D, up along theneedle-valve holder E into the vaporizer H, which latter is being heatedby the burning alcohol in the starting-cup. The oil is graduallyvaporized and, rising, escapes through orifice h into the mixing-chamberJ. The vapor or gas after commingling with the air passes downwardlythrough pipe or pipes J and as it begins to issue from the burners J isignited by the flame from the starting-cup.

With the construction described it will be seen that by turning theshaft F in one direction the needle and oil valves are simultaneouslyopened and by turning the shaft in the opposite direction the valves areclosed. Hence in order to extinguish the light it is simply necessary toturn the single shaft in a direction to close the gas-escape orifice andoil-inlet openings.

It is evident that many slight changes might be resorted to in therelative arrangement of the several parts herein shown and describedwithout departing from the spirit and scope of my invention. Hence Iwould have it understood that I do not Wish to confine myself to theexact construction of parts herein shown and described; but,

Having fully described my invention,what I claim as new, and desire tosecure by Letters Patent, is

1. In a vapor lamp or burner the combination with a needle-valve forcontrolling the discharge of vapor and means for positively opening andclosing said valve, of a valve for controlling the admission of oil tothe vaporizer, a spring for closing the oil-valve, and a stem connectedto the oil-valve arranged and adapted to be actuated by the holder ofthe needle-valve when the latter is opened and thereby open theoil-valve, substantially as set forth.

2. In a vapor lamp or burner, the combin ation with a needle -valveprovided with a holder, and means for positively actuating the valve andits holder in both directions, of an oil-supply-regulating valveprovided with a valve-stem, arranged and adapted to be engaged and movedin one direction by the needle-valve holder,a spring encircling thevalvestem for closing the oil-valve, and means for adjusting the tensionof the spring, substantially as set forth.

3. In a vapor lamp or burner, the combination with an oil-supply andvaporizer, a coupling connecting the two, and a needle-valve providedwith a holder, a pinion meshing with teeth on the valve-holder andadapted to positively move it in both directions, of an oilsupply valveprovided with a stem arranged and adapted to be engaged and actuated bythe needle-valve when moved to open the needle-valve and a springencircling said valvestem and adapted to close the oil-supply valve,substantially as set forth.

4. In a vapor lamp or burner the combination with an oil-supply andvaporizer, a coupling connecting the two, and a valve-seat detachablysecured to the coupling, of an oilsupply valve provided with a stemwhich extends through the valve-seat, and a spring encircling the stemand adapted to close the oil-supply valve, of a needle-valve providedwith a holder, a pinion mounted in the coup ling and meshing with teethon the holder, said holder being arranged to engage and actuate thevalve-stem and open the oil-supply valve when the needle-valve isopened, and to allow the spring to close the oil-supply valve when theneedle-valve is closed, substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribin g witnesses.

G. WASHINGTON.

Vitnesses:

A. W. BRIGHT, G. F. DOWNING.

